parallel versus serial data transmission
DIGITAL DATA TRANSMISSION - I
Ngày tải lên :
19/10/2013, 17:15
... Page 11
II. ASK Transmission (on-off Keying)
The circuit is build as shown in figure below. The input sine wave is multiplied by a
pulse generator, which can be used as a digital data bit.
Figure ... parameters Noise generator
EE-458 LAB REPORT
EXPERIMENT #5
DIGITAL DATA TRANSMISSION - I
1/27/2010
Page 12
Figure 5 B –II (c) block properties ... 10 dB
BER for bit delay (1) = 0.0 KHz
BER for bit delay (0) = 5.0 KHz
2) Changing The Data Rate
Data Rate of 8KHz attenuation 0 dB
BER for bit delay (1) = 0 Hz
BER for bit delay (0)...
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DIGITAL DATA TRANSMISSION - II
Ngày tải lên :
23/10/2013, 15:15
...
LAB REPORT
EXPERIMENT 6
DIGITAL DATA TRANSMISSION - II
SUBMITTED BY
Solve the equation above and get (f
1
-f
0
)T ... between known fixed frequencies to
convey digital data.
Normally, FSK modulation is achieved using just two frequencies to represent
binary data. For example, a frequency of 2000 Hz may represent ... Master Clock).
In this mode, a cosine begins at the start of every data period and proceeds at the
frequency fx until the end of the data period. Then the process repeats.
Figure 6c The FSk...
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Tài liệu Module 10: Creating a Security Design for Data Transmission docx
Ngày tải lên :
18/01/2014, 05:20
... learning.
Overview of Data
Transmission
Why Securing Data
Transmission Is
Important
Common Vulnerabilities
to Data Transmission
Practice: Analyzing
Risks to Data
Transmission
How to ... data transmission.
Design security for data transmission.
Introduction
Ob
j
ectives
20 Module 10: Creating a Security Design for Data Transmission
Lab A: Designing Security for Data ... Determining Threats and
Analyzing Risks to Data Transmission 2
Lesson: Designing Security for Data
Transmission 7
Lab A: Designing Security for Data
Transmission 19
Course Evaluation 22
Module...
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Tài liệu Chapter 3 Data Transmission pdf
Ngày tải lên :
16/02/2014, 08:20
...
Analog and Digital Data
Transmission
Data
Entities that convey meaning
Signals
Electric or electromagnetic representations of data
Transmission
Communication of data by propagation ... with DC Component
Data Rate and Bandwidth
Any transmission system has a limited band of
frequencies
This limits the data rate that can be carried
William Stallings
Data and Computer
Communications
Chapter ... of
Frequency
Components
Data and Signals
Usually use digital signals for digital data and
analog signals for analog data
Can use analog signal to carry digital data
Modem
Can use digital...
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Tài liệu Chapter 9 Using Telephone and Cable Networks for Data Transmission pptx
Ngày tải lên :
16/02/2014, 20:20
...
high-speed data transfer. In this section, we briefly
high-speed data transfer. In this section, we briefly
discuss this technology.
discuss this technology.
Bandwidth
Sharing
CM and CMTS
Data Transmission ... DSLAM
9.37
Figure 9.18 Cable modem transmission system (CMTS)
9.13
Figure 9.7 Modulation/demodulation
9.30
9-5 CABLE TV FOR DATA TRANSFER
9-5 CABLE TV FOR DATA TRANSFER
Cable companies are now ... 9.1
Chapter 9
Using Telephone
and Cable Networks
for Data Transmission
Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction...
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Parallel Data Input-Output
Ngày tải lên :
29/09/2013, 11:20
... others.
Such simultaneous input/output of several-bit data is referred to as parallel data
input/output and the peripheral functions for parallel data input/output are
called "I/O ports", ...
Chapter 8
Parallel Data Input/Output
Although the programs described in Chapter 6 use the memory and
CPU registers only, this chapter explains how to input and output parallel data.
Among ... ports", which have registers and pins as shown in Figure 8.1.
Figure 8.1: Parallel Data Input/Output
Parallel data input/output using I/O ports are performed through
registers as shown...
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Programming Serial and Parallel Ports
Ngày tải lên :
27/10/2013, 14:15
... reserved.
// set up the serial port
myPort.setSerialPortParams(BAUD, SerialPort.DATABITS_8,
SerialPort.STOPBITS_1, SerialPort.PARITY_NONE);
break;
case CommPortIdentifier.PORT _PARALLEL:
thePort = ... timeout.
tty = (SerialPort) port.openPort("Penman Driver", 1000);
// set up the serial port
tty.setSerialPortParams(9600, SerialPort.DATABITS_8,
SerialPort.STOPBITS_1, SerialPort.PARITY_NONE);
tty.setFlowcontrolMode(SerialPort.FLOWCTRL_RTSCTS_OUT|
SerialPort.FLOWCTRL_RTSCTS_OUT);
// ... JLabel(" ;Serial Ports", JLabel.RIGHT));
serialPortsChoice = new JComboBox();
centerPanel.add(serialPortsChoice);
serialPortsChoice.setEnabled(false);
centerPanel.add(new JLabel("Parallel...
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Tài liệu Lecture 22: Digital Transmission of Analog Data (Baseband Transmission): doc
Ngày tải lên :
09/12/2013, 16:15
... Telecommunications, Winter 2000 Lecture-22 Digital Transmission
Digital Transmission of Analog Data (Baseband Transmission) :
• Analog voice data must be translated into a series of binary digits ... sequence of coded pulses. The
transmission takes place at both discrete amplitude and discrete times.
Digital Pulse modulation or the use of coded pulses for the transmission of analog information ... taken.
These 8000 samples are then transmitted as a serial stream of 0s and 1s.
Then 8 bits per sample times 8000 samples requires a 64,000 bps transmission rate.
(8 x 8000 = 64000 bps = 64 kbps)...
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Tài liệu Báo cáo khoa học: "Collecting Highly Parallel Data for Paraphrase Evaluation" doc
Ngày tải lên :
20/02/2014, 04:20
... by presenting a novel data collection
framework that produces highly parallel text
data relatively inexpensively and on a large
scale. The highly parallel nature of this data
allows us to use ... bilingual data to sup-
port paraphrase extraction. In contrast, our approach
only requires monolingual data, and evaluation can
be performed using arbitrarily small, highly -parallel
datasets. ... significant
amount of translation data, unique in its multilingual
parallelism. While included in our data release, we
leave aside a full discussion of this multilingual data
for future work.
192
vey...
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Báo cáo khoa học: "A DOM Tree Alignment Model for Mining Parallel Data from the Web" doc
Ngày tải lên :
08/03/2014, 02:21
... hyperlinks are used to pin-
point new parallel data, and make parallel data
mining a recursive process. Parallel text chunks
are fed into sentence aligner to extract parallel
sentences.
Benchmarks ... sentence pairs
are either exact or roughly parallel.
Corpus Exact
Parallel
Roughly
Parallel
Not Parallel
Mined 1703 167 130
Table 3 Quality of Mined Parallel Sentences
As we know, the absolute ...
the location holding more parallel data. This ap-
proach is based on our observation that parallel
pages share similar structures holding parallel
content, and parallel hyperlinks refer to...
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Báo cáo khoa học: "Multilingual Named Entity Recognition using Parallel Data and Metadata from Wikipedia" potx
Ngày tải lên :
23/03/2014, 14:20
... Figure 1: A parallel sentence-pair showing gold-standard NE labels and word alignments.
To create our dataset, we followed Smith et al.
(2010) to find parallel- foreign sentences ... data sizes are fairly small as the data is
Language Entities Aligned %
English 342 93.9%
Bulgarian 344 93.3%
English 414 88.4%
Korean 423 86.5%
Table 1: English-Bulgarian and English-Korean data
characteristics.
used ... Association for Computational Linguistics
Multilingual Named Entity Recognition using Parallel Data and Metadata
from Wikipedia
Sungchul Kim
∗
POSTECH
Pohang, South Korea
subright@postech.ac.kr
Kristina...
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Báo cáo khoa học: "Big Data versus the Crowd: Looking for Relationships in All the Right Places" docx
Ngày tải lên :
30/03/2014, 17:20
... a
structured, but incomplete, database D that instanti-
ates relations of interest and a text corpus C that con-
tains mentions of the entities in our database. For-
mally, a database is a tuple D = ... without labelled
data. In Proceedings of the Conference on Empiri-
cal Methods in Natural Language Processing, pages
1013–1023.
C. Zhang, F. Niu, C. R
´
e, and J. Shavlik. 2012. Big
data versus the ... 2010).
2 Related Work
The idea of using entity-level structured data (e.g.,
facts in a database) to generate mention-level train-
ing data (e.g., in English text) is a classic one: re-
searchers...
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thomas and patnaik-serial correlation in high-frequency data and the link with liquidity
Ngày tải lên :
24/04/2014, 00:23
... interesting new facet of the issue of using over-lapping versus non-over-lapping data
in VR studies when applied to HF data:
• The abundance of HF data and the lower efficiency of overlapping VR would ... for serial correlation in HF data.
• Andersen et al. (2001) study the shift in volatility patterns in HF data. They use non-
overlapping returns to analyse the behaviour of the VR in this data. ... the recent past, intra-day financial markets data has become available for analysis. This high
frequency data (HF data) constitutes price and volumes data that can be observed at intervals that
are...
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Báo cáo hóa học: " Elective caesarean section versus vaginal delivery for preventing mother to child transmission of hepatitis B virus – a systematic review" pot
Ngày tải lên :
20/06/2014, 01:20
... by discussion.
Data extraction
Two review authors (ZX, MY) independently extracted
data concerning details of the study population, interven-
tions and outcomes using a standard data extraction ... introduced as an intervention for preventing mother-to-child
transmission (MTCT) of hepatitis B virus (HBV). Currently, no evidence that ECS versus vaginal
delivery reduces the rate of MTCT of HBV ... from randomized control trails (RCTs), the efficacy and safety of ECS versus vaginal
delivery in preventing mother-to-child HBV transmission.
Results: We searched Cochrane Pregnancy and Childbirth...
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